YASKAWA
TOEPC71061737D GA800 DRIVE INSTALLATION & PRIMARY OPERATION
79
2.
Refer to the figure and wire the control circuit.
WARNING
Fire Hazard. Tighten all terminal screws to the correct tightening torque. Connections that are too loose
or too tight can cause incorrect operation and damage to the drive. Incorrect connections can also cause death or serious
injury from fire.
Note:
• Use shielded, twisted-pair wires and ground the shield to the ground terminal of the drive. Incorrect equipment grounding can
cause drive or equipment malfunction from electrical interference.
• Do not use control circuit wiring that is longer than 50 m (164 ft) to supply the analog frequency reference from a remote source.
If the control circuit wiring is too long, it can cause unsatisfactory system performance.
A - Loosen the screws and put the
wire into the opening on the
terminal block.
B - Wire with a crimp ferrule
attached, or unsoldered wire
with the core wires lightly
twisted
C - Pull back the shielding and
lightly twist the end with your
fingers to keep the ends from
fraying.
D - When you do not use crimp
ferrules, remove approximately
5.5 mm (0.21 in) of the covering
at the end of the wire.
E - Blade width of 2.5 mm (0.1 in) or
less
F - Blade thickness of 0.4 mm (0.01
in) or less
Figure 10.8 Wiring Procedure for the Control Circuit
Note:
• Do not solder the core wire. Soldered wiring connections can become loose and cause the drive to malfunction.
• Tighten all terminal screws to the correct tightening torque. Connections that are too loose or too tight can cause incorrect
operation and damage to the drive. Incorrect connections can also cause death or serious injury from fire.
• Refer to
for information to prepare terminal ends of the shielded wire.
• Prepare the wire ends of shielded twisted-pair wires as shown in
to use an analog reference from an external
frequency setting potentiometer to set the frequency. Connect the shield to terminal E (G) of the drive.
A - Connect the shield to terminal E
(G) of the drive.
B - Sheath
C - Insulate with electrical tape or
shrink tubing.
Figure 10.9 Prepare the Ends of Shielded Wire